Achievements
Complete each achievement to get the allotted gamerscore:

Brown Belt (50) - Win 50 Ranked Matches with a CAF or UFC fighter in Xbox LIVE.
Black Belt (100) - Win 100 Ranked Matches with a CAF or UFC fighter in Xbox LIVE.
Blue Belt (20) - Win 15 Ranked Matches with a CAF or UFC Fighter in Xbox LIVE.
Call me "No Touch!" (75) - Complete Career Mode and retire undefeated.
Gold Digger! (30) - Obtain all the gold medals in a Xbox LIVE Ranked Match Weekly Mission.
Hall of Famer (25) - Enter the Hall of Fame with a fighter during Career Mode.
Ooh, in ya face! (25) - Win a fight by flash KO in a Xbox LIVE Ranked Match with a CAF or UFC fighter.
Original fighter (25) - Create A Fighter and use the CAF in Exhibition or Xbox LIVE.
Red Belt (100) - Reach level 50 or higher in a Xbox LIVE Ranked Match.
Roster Run-through (40) - Complete one fight in Exhibition Mode with each UFC fighter.
Papa Said Knock You Out! (30) - Win 15 Ranked Matches with a CAF or UFC fighter by KO in Xbox LIVE.
Pound-for-Pound Champion (100) - Win the UFC Championship in each weight class in Career Mode.
Purple Belt (30) - Win 30 Ranked Matches with a CAF or UFC Fighter in Xbox LIVE.
Student of the game. (25) - Complete all tasks from the Tutorial Mode.
That was easy! (20) - Win in under 20 seconds of the 1st round against a COM UFC Fighter in Exhibition or Career Mode.
Two of my favorites! (15) - Watch the Octagon Girl cutscene 15 times without skipping it.
Trophy Collector (25) - Obtain all the trophies in Career Mode with a fighter.
UFC Historian (20) - Unlock all movies from the Classic Fights Mode.
Ultimate Submission (15) - From the gassed state, Submit an opponent in any mode.
Ultimate Highlights (15) - Dominate the opponent in all 3 scenes of a replay segment.
Ultimate Knockout (15) - From the gassed state, KO an opponent in any mode.
Undisputed Champion (25) - Win the UFC Championship with a fighter in Career Mode.
Wax On! (30) - Win 15 Ranked Matches with a CAF or UFC fighter by submission in Xbox LIVE.
Wax Off! (20) - Escape 20 submissions by technical escape against a COM UFC Fighter in Exhibition or Career Mode.
Where's my bonus check? (20) - Obtain the KO, Submission and Fight of the Night Awards with a fighter in Career Mode.
Wanted: Flying Mouthpieces (15) - Mouth piece travels more than 3 meters when knocked out.
White Belt (10) - Win a Ranked Match with a CAF or UFC fighter in Xbox LIVE.
World Class Striker (30) - Win by KO without using any grappling against a COM UFC Fighter in Exhibition or Career Mode.
World Class Grappler (30) - Win by Submission using no striking against a COM UFC Fighter in Exhibition or Career Mode.
You really like me! (20) - Gain a million or more fans in a Xbox LIVE Ranked Match.

Unlock "Mask"
Get 3 consecutive wins in Career mode by tapout/submission. He will then be selectable in exhibition matches in the light heavyweight weight class.